Microbiology Bacteria 45c775dc Only mycobacteria which produces exotoxin - A M. tuberculosis B M. Ajarinum C M. Ulcerans D M.Bavis High-Yield Explanation Ans. is 'c' i.e., M. Ulcerans * Buruli ulcer is caused by M. ulcerans.* It is the only mycobacteria producing a toxin.